2024-07-23 12:07
Mathlib/Order/CompleteBooleanAlgebra.lean
refactor: Make `Frame` extend `HeytingAlgebra` (#10560) …
Added Order.Frame.MinimalAxioms.Order.Coframe.MinimalAxioms.CompleteDistribLattice.MinimalAxioms.CompletelyDistribLattice.MinimalAxioms.biSup_symmDiff_biSup_le